I have re-drawn it myself, both schematic and PCB. I was repairing a badly broken one, had to manufacture a new PCB.

]]>someone can give me the value of the D3 diode ( mine is burned…), C15 value?

and if someone have the reference number or somewere i can buy the yellow transformator with 4 in primary and 6 in secondary…

thousand thanks !!

Loic/ sls-lehavre@hotmail.fr ]]>

SF1600v –

VISHAY SF1600-TR Fast / Ultrafast Power Diode, 1.6 kV, 1 A, Single, 3.4 V, 75 ns, 30 A

Any way a chum of mine had a “E8″ stop working and guess what it was…

Back in 2002(when it went faulty I said I’d look rather than bin it).I tried to find any information and couldn’t really so I contacted “Soundcraft” via email:

Dear Ian,

the schematics for the PSU come as part of the technical manual for the E series range consoles which is £130.00 . Price for the replacement PSU is £47.80 plus carriage & VAT.

Please contact us if you have any questions or if you wish to place an order.

Regards

So quick as a flash I left it…But today I have checked D3 the “Zener” and after lifting on side off the board, its “short circuit”,the caps don’t “look” bulging so I’m going to lift and check with an analogue meter…Thanks again for a top Thread…

]]>“The absolute numbers still don’t match what the equation says I should get, ”

But your calculations are only for the time constant of that R & C. In most practical circuits a time delay is given by zRC where z ( should be Greek zeta ) is typically 0.5 to 0.75, so you can’t say what you did.

It looks like the numbers (calculated ) could actually match what you found if you use the right zeta.

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